Picking up that Old Navy gift card for your little sister could pay off this Black Friday, when the clothing retailer will be giving away free copies of LEGO Rock Band with every $20 purchase.

Old Navy isn't known for its video game deals, but they'll be handing out copies of LEGO Rock Band on Black Friday nonetheless, along with free guitar controllers with any purchase of Rock Band 2. It's all part of the Black Friday event the chain is calling Gobblepalooza, with "3 days of rockin' deals" for fans of Harmonix music games and affordable yet fashionable clothing for adults and teens.

It's a bizarre little promotion, really. So odd that you might actually have a chance of scoring a copy on Black Friday, if you can avoid being trampled. Old Navy is a scary place on Black Friday.